TY  - BOOK
AU  - Gass,I.G.
AU  - Smith,Peter J.
AU  - Wilson,R.C.L.
TI  - Understanding the Earth: a Reader in the Earth Sciences. 2nd ed
PY  - 1972///
CY  - S.l.
PB  - The Artemis Press
KW  - RMCA
KW  - GG General Geology
ER  -